Meaning | sea urchins and sand dollars. |
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Synonym | class Echinoidea |
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Member of | Echinodermata, phylum Echinodermata | radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers |
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Members | Exocycloida, order Exocycloida | Flat sea urchins |
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Spatangoida, order Spatangoida | heart-shaped sea urchins |
sea urchin | shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells |
Broader | class | (biology) a taxonomic group containing one or more orders |
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Spanish | clase Echinoidea, Echinoidea, equinoideos |
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Catalan | Echinoidea |
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